histology slides for mbbs part 1 uhs

Muhammad Ramzan Ul Rehman 1


Histology Slides For MBBS Part 1 Exams

(uhs)

By Muhammad Ramzan UL Rehman


• 1: Simple squamous epithelium:

• Single layer of cells• Flat cells• Flat nucleus


• Simple cuboidal epithelium:

• Single layer of cells• Cube like cells• rounded central nucleus


• Simple columnar epithelium:

• Single layer of cells• Tall cells• Oval nucleus oriented

along the length of cell


• : Pseudotratified epithelium with goblet cells and cilia:

• Single layer of cells• Nuclei arranged at

different levels• Tall columnar cells

with cilia; short basal cells present

• Goblet cells present


• Stratified squamous non-keratinized epithelium:

• Multiple layers of cells• Basal cells are columnar• Middle layers of polygonal

cells• Scale like surface cells with

flat nuclei• Keratin layer is absent on

the surface of epithelium


• Stratified squamous keratinized epithelium:

• Multiple layers of cells• Basal cells are columnar• Middle layers of polygonal cells• Flat surface cells• Keratin layer is present on the surface

and cells on surface don’t show nucleus


• transitional epithelium:

• multiple layers of cells• pear shaped cells in

the middle• dome shaped cells on

the surface


• loose areolar connective tissue

• almost all connective tissue cells are present

• all connective tissue fibers are present

• fibers are loosely arranged

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• adipose connective tissue:

• fat cells showing signet ring appearance

• each cell having a large fat globule and marginal nucleus


• dense regular connective tissue:

• densely packed collagen fibers running parallel to each other

• fibroblast are present between the bundles of collagen fibers


• dense irregular connective tissue:

• densely packed collagen fiber arranged irregularly in different directions

• fibroblast are present between the bundles of collagen fibers


• Hyaline non-articular cartilage:

• Perichondrium present

• Glassy (homogenous) ground substance

• Chondrocytes making isogenous groups


• Elastic cartilage:

• Perichondrium present

• Branching Elastic fibers present

• Scattered chondrocytes are present singly or as pairs


• Fibrocartilage:

• Perichondrium absent

• Thick type I collagen fibers are present in the matrix

• Chondrocytes arranged in rows


• Compact bone:

• Characteristic lamellae of bone matrix

• Haversian and Volkmann’s canals are present

• Osteocytes in lacunae• Haversian system

present


• Skeletal muscle:

• Well marked Cross striations

• Non branching Cylindrical fibers

• Many sub-sarcolemmal flat nuclei

• endomysium and perimysium present

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• cardiac muscle:

• Cross striations present

• Branching fibers• Intercalated disc-

present• 1-2 oval central nuclei


• muscular artery

• Tunica intima, media and adventitia are present

• tunica media is thick smooth muscle layer

• Internal and external elastic lamina are present

• Patent lumen


• muscular vein:• Thin walled with larger

irregular lumen• Tunica intima, media

and adventitia are present

• Thick tunica media is thin smooth muscle layer

• Adventitia is thicker than tunica media


• Elastic artery:

• Tunica media contain 30-40 layers of elastic fibers.

• Smooth muscle is less abundant

• External elastic lamina is not well marked


• Lymph node:

• Connective tissue capsule

• Cortex and medulla is present

• Lymph nodules are only situated in the cortex and have no central arterioles


• spleen:

• Peritoneal covering (serosa)

• Red and white pulp

• No differentiation into cortex and medulla

• Splenic nodules with central arteriole


• palatine tonsil:

• Tonsillar crypts lined by Stratified squamous non-keratinized epithelium

• No lymph sinuses• Lymph nodules are

arranged in rows


• thymus:

• Characteristic lobules with cortex and medulla

• Hassall’s corpuscles

• No lymph sinuses


• dorsal root ganglion:

• Connective tissue capsule present

• Pseudounipolar neurons surrounded by satellite cells


• thin skin or Hairy skin

• Epidermis and dermis• Stratified squamous

keratinized epithelium with thin layer of keratin on surface

• Dermal papillae• Hair roots and hair

follicles- present• Sebaceous glands are

present


• thin skin or Hairy skin


keratinized epithelium with thin layer of keratin on surface


follicles- present• Sebaceous glands are

present


• Thick skin or Non hairy skin


keratinized epithelium is present with thick layer of keratin on surface


follicles-absent


• spinal cord:

• Central canal is present• Inner butterfly shaped

arrangement of grey matter

• Multipolar neurons in the anterior horn

• Outer white matter


• Cerebellum:

• Outer grey matter having 3 layers (molecular layer, Purkinje cell layer, granular layer)

• Inner white matter


• Cerebrum:

• Outer grey matter having six layers

• Pyramidal cells

• Inner white matter


• dorsal root ganglion:

• Connective tissue capsule present

• Pseudounipolar neurons surrounded by satellite cells


Blood

• Typical RBCs are present

• Presence of other Blood cells like leucocytes and Monocytes and etc.


• peripheral nerve:

• Bundle of fibers• Myelin sheah is

seen as unstained area

• Endoneurium, perineurium is visible


Wish you Good Luck.

Muhammad Ramzan UL Rehman

Nishtar medical college Multan

histology slides for mbbs part 1 uhs

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